Finding the Fourth Proportional to 383,478,497.40, 575,217,746.10 and 266,136,324.60
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Solution
The fourth proportional to 383,478,497.40, 575,217,746.10 and 266,136,324.60 is: 399,204,486.90
Step by Step Solution
- Step 1: Write the proportion equation
383,478,497.40 : 575,217,746.10 = 266,136,324.60 : x - Step 2: Convert to fraction form
383,478,497.40/575,217,746.10 = 266,136,324.60/x - Step 3: Cross multiply
383,478,497.40x = 575,217,746.10 × 266,136,324.60 - Step 4: Simplify right side
383,478,497.40x = 153,086,336,791,749,984 - Step 5: Solve for x
x = 153,086,336,791,749,984/383,478,497.40 - Step 6: Final answer
x = 399,204,486.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.